GB1141232A - Improvements in hoisting devices - Google Patents
Improvements in hoisting devicesInfo
- Publication number
- GB1141232A GB1141232A GB4877/67A GB487767A GB1141232A GB 1141232 A GB1141232 A GB 1141232A GB 4877/67 A GB4877/67 A GB 4877/67A GB 487767 A GB487767 A GB 487767A GB 1141232 A GB1141232 A GB 1141232A
- Authority
- GB
- United Kingdom
- Prior art keywords
- luffing
- slewing
- speed
- switch
- motors
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/10—Arrangement of ship-based loading or unloading equipment for cargo or passengers of cranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/22—Control systems or devices for electric drives
- B66C13/30—Circuits for braking, traversing, or slewing motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
- B66C2700/08—Electrical assemblies or electrical control devices for cranes, winches, capstans or electrical hoists
- B66C2700/082—Control of the secondary movements, e.g. travelling, slewing, luffing of the jib, changing of the range
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Jib Cranes (AREA)
- Control And Safety Of Cranes (AREA)
- Basic Packing Technique (AREA)
- Binders And Loading Units For Sheaves (AREA)
- Drying Of Solid Materials (AREA)
Abstract
1,141,232. Control of two motors. ALLMANNA SVENSKA ELEKTRISKA A.B. 1 Feb., 1967 [2 Feb., 1966], No. 4877/67. Heading H2J. A programming device for a crane comprises cam-shaft controllers which are driven in accordance with the slewing and luffing movements respectively of a load-arm whereby the speeds of the slewing and luffing motors are controlled in accordance with angular positions of the arm. When the load has been hoisted, automatic control is initiated by closing switch 40 in circuit with field windings 21, 39, of Ward Leonard generators which supply the luffing and slewing motors respectively. The direction of slew is selected by closing switch 31, the load being driven along a chosen path and at a chosen speed to a point where it is to be lowered. At first, switch 22 is open to de-energize the luffing motor, the slewing motor running at maximum speed since limit switches 35-38 are closed. After the arm has slewed through 15 degrees, switch 22 closes so that the luffing motor operates at low speed since resistors 18- 20 are in circuit. When the arm has slewed through 25 degrees, switches 26, 29 close to increase the luffing speed, whilst switch 37 opens to reduce the slewing speed. Thereafter the luffing speed is increased in stages and the slewing speed is reduced until the maximum slewing angle is reached whereupon switch 38 opens to stop the slewing motor. When the maximum luffing distance has been reached, switch 25 opens to stop the luffing motor at the final position of the load. Switches 23, 24, open at set luffing distances so that the luffing movement does not exceed the maximum for the respective slewing angle. Some of the cams may be adjustable for setting up different programmes. In modification the crane is provided with A.C. motors, thyristor-fed D.C. motors, or hydraulic motors. Continuous control by means of a potentiometer or other electric position indicator may be provided.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1297/66A SE302192B (en) | 1966-02-02 | 1966-02-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1141232A true GB1141232A (en) | 1969-01-29 |
Family
ID=20257953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4877/67A Expired GB1141232A (en) | 1966-02-02 | 1967-02-01 | Improvements in hoisting devices |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3489293A (en) |
| DE (1) | DE1481730C3 (en) |
| ES (1) | ES335884A1 (en) |
| FI (1) | FI44280B (en) |
| FR (1) | FR1509880A (en) |
| GB (1) | GB1141232A (en) |
| NL (1) | NL6701037A (en) |
| NO (1) | NO125044B (en) |
| SE (1) | SE302192B (en) |
| SU (1) | SU464099A3 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3735876A (en) * | 1969-01-27 | 1973-05-29 | Clark Equipment Co | Crane controls |
| US3754665A (en) * | 1972-02-14 | 1973-08-28 | Gottwald Kg Leo | Overload safety device for a crane |
| GB1420490A (en) * | 1972-12-19 | 1976-01-07 | Havard J Charonnat H | Control device for cranes |
| US4236864A (en) * | 1978-11-09 | 1980-12-02 | Raymond Couture | Safety control system for the boom of a crane |
| GB2252295B (en) * | 1991-01-31 | 1994-08-03 | James Daniel Davidson | Offshore crane control system |
| RU2666494C1 (en) * | 2017-10-02 | 2018-09-07 | федеральное государственное автономное образовательное учреждение высшего образования "Южно-Уральский государственный университет (национальный исследовательский университет)" (ФГБОУ ВПО "ЮУрГУ" (НИУ)) | Electric drive lifting mechanism of tower crane with parametric control |
| CN112357766B (en) * | 2020-11-20 | 2022-06-10 | 中船华南船舶机械有限公司 | Compensating method for moment instrument of platform crane |
| CN112897346B (en) * | 2021-03-31 | 2022-05-13 | 中国水利水电夹江水工机械有限公司 | Crane operation route planning method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1065152B (en) * | ||||
| US2916162A (en) * | 1953-11-06 | 1959-12-08 | Maschf Augsburg Nuernberg Ag | Apparatus for damping pendulum motions of the load suspended from a lifting machine |
| US2941132A (en) * | 1956-09-21 | 1960-06-14 | Cutler Hammer Inc | Motor-brake control systems |
| US3035712A (en) * | 1960-02-17 | 1962-05-22 | Westinghouse Bremsen Gmbh | Overload safety control apparatus for cranes |
| DE1169631B (en) * | 1962-04-03 | 1964-05-06 | Krupp Ardelt Gmbh | Control device for slewing jib cranes |
-
1966
- 1966-02-02 SE SE1297/66A patent/SE302192B/xx unknown
-
1967
- 1967-01-20 ES ES0335884A patent/ES335884A1/en not_active Expired
- 1967-01-23 NL NL6701037A patent/NL6701037A/xx unknown
- 1967-01-27 DE DE1481730A patent/DE1481730C3/en not_active Expired
- 1967-01-31 NO NO166637A patent/NO125044B/no unknown
- 1967-01-31 FI FI0267/67A patent/FI44280B/fi active
- 1967-02-01 GB GB4877/67A patent/GB1141232A/en not_active Expired
- 1967-02-02 FR FR93475A patent/FR1509880A/en not_active Expired
- 1967-02-04 SU SU1131189A patent/SU464099A3/en active
- 1967-09-21 US US669450A patent/US3489293A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE1481730C3 (en) | 1974-04-18 |
| DE1481730B2 (en) | 1973-09-13 |
| DE1481730A1 (en) | 1969-03-20 |
| SU464099A3 (en) | 1975-03-15 |
| NL6701037A (en) | 1967-08-03 |
| FI44280B (en) | 1971-06-30 |
| ES335884A1 (en) | 1967-12-01 |
| SE302192B (en) | 1968-07-08 |
| NO125044B (en) | 1972-07-10 |
| FR1509880A (en) | 1968-01-12 |
| US3489293A (en) | 1970-01-13 |
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